CN102222059A - Method, device and system for realizing multi-format information display of electronic reader - Google Patents
Method, device and system for realizing multi-format information display of electronic reader Download PDFInfo
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- CN102222059A CN102222059A CN2011101594412A CN201110159441A CN102222059A CN 102222059 A CN102222059 A CN 102222059A CN 2011101594412 A CN2011101594412 A CN 2011101594412A CN 201110159441 A CN201110159441 A CN 201110159441A CN 102222059 A CN102222059 A CN 102222059A
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Abstract
The embodiment of the invention discloses a method, a device and a system for realizing multi-format information display of an electronic reader, and belongs to the technical field of information display. The method comprises the following steps of: identifying the electronic reader connected with a computer as a printer by the computer, converting files with different formats into format page files, and transmitting the converted format page files to the electronic reader; and performing page rendering on the received format page files by the electronic reader, and displaying the rendered format page. With the embodiment of the invention, the display of different format files by the electronic reader can be realized without developing various different softwares supporting display of information with different formats for the electronic reader.
Description
Technical field
The present invention relates to the information display technology field, be specifically related to a kind of realization electronic reader multi-format method for information display, equipment and system.
Background technology
Electronic reader is a kind of instrument of browsing e-book, and the size of the display screen of electronic reader has determined singly to shield and shown what of number of words, and the technology that is applied to the electronic reader screen mainly contains display techniques such as electronic paper technology, LCD.
Along with development of technology, the electronic reader screen is increasing, and resolution is also more and more higher, and this reading for electronic document provides bigger convenience.But owing to be subjected to condition restriction such as performance, construction cycle, software cost, compare computing machine, the document format that existing electronic reader is supported still very little.And, often needing to develop corresponding software in order to support a certain form, manufacturer need pay big cost at aspects such as the intellecture property of particular document form, development cost, times for this reason.For example in order to support the PDF document format to read, need to buy the intellecture property of Adobe, also the SDK (Software Development Kit, SDK (Software Development Kit)) that need provide at Adobe is just carry out secondary development and can finish on the basis.
Summary of the invention
The invention provides a kind of realization electronic reader multi-format method for information display, equipment and system, can't support the problem that various documents in various formats show with electronic reader in the solution prior art.
For this reason, the invention provides following technical scheme:
A kind of realization electronic reader multi-format method for information display comprises:
By computing machine coupled electronic reader is identified as printer, the document of different-format is converted to the layout page document, and the layout page document after will changing sends electronic reader to;
Described electronic reader carries out the page to the described layout page document that receives to be drawn, and shows the layout page after drawing.
Preferably, describedly the document of different-format is converted to the layout page document, and the layout page document after will changing sends electronic reader to and comprises by computing machine:
Described computing machine is converted to the layout page document that described printer is supported by the document printing interface with the document of different-format, and described layout page document-synchronization is sent to described electronic reader.
Alternatively, described computing machine is sent to described electronic reader with described layout page document-synchronization and comprises:
Described computing machine is sent to described electronic reader by USB interface or wireless network with described layout page document-synchronization.
Alternatively, described computing machine is converted to the layout page document with the document of different-format, and the layout page document after will changing sends electronic reader to and comprises:
By the document printing interface document of different-format is converted to the layout page document by described computing machine in advance, and with described layout page document storing in described computing machine this locality;
The described layout page document that is kept at computing machine this locality is sent to described electronic reader by asynchronous system.
Alternatively, described electronic reader carries out the page to the described layout page document that receives and draws and comprise:
Described electronic reader carries out convergent-divergent and/or rotary manipulation according to the display screen parameter of described electronic reader to each page in the described layout page document.
Alternatively, the layout page document after described will the conversion sends electronic reader to and comprises:
Send the layout page document after the conversion to electronic reader page by page; And/or,
The layout page document packed sends electronic reader to, by the index in the literature kit each page in the layout page document is called.
A kind of electronic reader comprises:
Receiving element, be used for the layout page document that receiving computer transmits, the layout page document that described computing machine transmits is by described computing machine coupled electronic reader to be identified as printer, and the document of different-format is converted to the layout page document of described printer support by the document printing interface;
Draw processing unit, be used for that the layout page document that described receiving element receives is carried out the page and draw;
Display unit is used to show the layout page after described drafting processing unit is drawn.
Alternatively, described receiving element, specifically be used for receiving the layout page document that directly transmit described computing machine conversion back synchronously, perhaps receive the layout page that is kept at described computing machine this locality that described computing machine transmits by asynchronous system by USB interface or wireless network.
Alternatively, described drafting processing unit specifically is used for according to the display screen parameter of described electronic reader each page of described layout page document being carried out convergent-divergent and/or rotary manipulation.
A kind of realization electronic reader multi-format information display system comprises: computing machine and the electronic reader that links to each other with described computing machine;
Described computing machine is used for described electronic reader is identified as printer, and the document of different-format is converted to the layout page document that described printer is supported, and described layout page document-synchronization is sent to described electronic reader;
Described electronic reader is used to receive the described layout page document that described computing machine transmits, and described layout page document is carried out the page draw, and the layout page after the demonstration drafting.
Alternatively, described electronic reader is used for linking to each other with described computing machine by USB interface.
By above technical scheme provided by the invention as can be seen, realization electronic reader multi-format method for information display, equipment and system that the embodiment of the invention provides, be converted to the layout page document and send electronic reader to by the document of computing machine different-format, thereby for the ocr software of various different-formats provides a unified format interface, make electronic reader need not to develop corresponding software for various forms again, and only need to support that the specific format after " printing " can show the document, realize the demonstration of electronic reader to documents in various formats.
Description of drawings
In order to be illustrated more clearly in technical scheme of the invention process, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram that the embodiment of the invention realizes electronic reader multi-format method for information display;
Fig. 2 is a kind of structural representation of embodiment of the invention electronic reader;
Fig. 3 is a kind of structural representation that the embodiment of the invention realizes electronic reader multi-format information display system;
Fig. 4 is the process flow diagram of the layout page document of computing machine after electronic reader transmits conversion in the present embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Can't support the problem that multiple documents in various formats shows at existing electronic reader, the document of considering nearly all form all has corresponding software to support the demonstration and the printing function of the document on computers, therefore the embodiment of the invention realizes electronic reader multi-format method for information display, equipment and system, make full use of this function on the computing machine, be converted to the layout page document and send electronic reader to by the document of computing machine different-format, thereby make the electronic reader corresponding form ocr software of need not redeveloping, and only need to support above-mentioned layout page document can show the document, realize the demonstration of electronic reader to documents in various formats.
Need to prove that the notion of above-mentioned " printing " is a kind of metaphor of image, concrete processing procedure will describe in detail among the embodiment in the back.
As shown in Figure 1, be the process flow diagram that the embodiment of the invention realizes electronic reader multi-format method for information display, may further comprise the steps:
The aforementioned calculation machine can be equipment such as PC, notebook computer, server.
In actual applications, electronic reader can adopt synchronous or asynchronous dual mode, obtains above-mentioned layout page document from computing machine.To describe in detail respectively in the back this.
Particularly, electronic reader can call the display driver of electronic reader, and the document of load store in electronic reader makes every page layout page show and operations such as convergent-divergent, rotation according to the display screen parameter of electronic reader.
Computing machine in the embodiment of the invention and electronic reader can adopt the identical operations system, also can adopt different operating system, such as, the aforementioned calculation machine adopts Windows operating system, and above-mentioned electronic reader adopts (SuSE) Linux OS and Qt environment (a cross-platform C++ graphic user interface storehouse).
In actual applications, electronic reader can be modeled as a printer, by computing machine with the document " printing " of different-format to this electronic reader, thereby for the ocr software of various different-formats provides a unified format interface, make electronic reader need not to develop corresponding software for various forms again, and only need to support that the specific format after " printing " can show the document, realize the demonstration of electronic reader to documents in various formats.
The front is mentioned, and in embodiments of the present invention, electronic reader can adopt synchronous or asynchronous dual mode, obtains described layout page document from computing machine, below respectively to this detailed description.
1. the method for synchronization
This mode at first needs electronic reader is linked to each other with computing machine, such as passing through USB (Universal Serial BUS, USB (universal serial bus)) interface or wireless network are connected on the computing machine, make computing machine that this electronic reader is identified as " printer ", certainly, should " printer " be the printer of a simulation, but not a real printer.By the document printing interface document of different-format is converted to the layout page document by computing machine then, and this layout page document-synchronization is sent to coupled electronic reader.
Particularly, preset the driving file that is complementary with above-mentioned electronic reader at first on computers, these driving files classes are similar to the driving of printer, can drive according to the defined printer apparatus standard of the operating system that computing machine is installed to write.For example, for the window operating system that computing machine is installed, can write the driving file that is complementary with above-mentioned electronic reader according to the DDK-Device Drivers Kit that Microsoft provides.Like this, with after the aforementioned calculation machine links to each other, computing machine can be identified as printer with above-mentioned electronic reader by this driving file with above-mentioned electronic reader.In the driving file of writing, " printer attribute " described print format can be defined as: with electronic reader resolution and the consistent format message file forms such as picture of resolution; In addition, current electronic reader that partly is provided with printer communication and the connected mode of PC are: USB interface or wireless network.
Afterwards, after the user starts corresponding document application program and opens the document of certain form in the computing machine, just can select the aforementioned printed driver of writing at electronic reader that document is carried out " printing " by calling the printing interface that the document application program provides.At this moment, this driving file at first reads the character in the document, the document is converted to the layout page document, and with this layout page document by USB interface or wireless network, adopt with agreement that above-mentioned interface adapts and in real time the layout page document be sent to the electronic reader that links to each other with computing machine.
The detailed process of above-mentioned generation layout page document can be API (the Application Programming Interface of the extracting screen window content that provides by operating system, application programming interface) operation, the GetDC among the VB for example, be presented at document in the window from the upper left corner with current, scanning from top to bottom from left to right,, the colouring information of each point of obtaining is stored successively, be converted to picture file in the view data that the information of these points is formed by corresponding picture compression algorithm at last, as JPG file, TIF file etc.For example, when the user need show the document a.xls of EXCEL form on electronic reader, can utilize the EXCEL software of installing on the computing machine, open the a.xls document on computers, " printing " option in the select File menu, the " electronic reader " option in the tabulation of selective printing machine, click " determining " button on the page then, like this, after computing machine receives user's operating command, the a.xls document of EXCEL form is converted to the layout page document by the document printing interface.Particularly, computing machine can show each page or leaf of a.xls document successively, and by grasping the message bit pattern that operations such as screen scan the current window content, message bit pattern is converted to the picture format file.Need to prove, by the way, computing machine can be converted to the document of various different-formats the layout page document, as long as computing machine can be supported this form, such as WORD form, VISIO form, PDF, TXT form, JPG form, TIF form or the like.
The aforementioned calculation machine is as follows by the detailed process division that USB or wireless network and electronic reader carry out communication:
Under the situation of USB interface transmission, after above-mentioned format document transfer process finishes, immediately according to the USB communications protocol, the scanning USB port, if find to have electronic reader devices to connect (whether can differentiate according to the driving arrangement sign of appointment is electronic reader devices), just send data transmission requests to corresponding USB port.
Electronic reader begins to prepare to receive data after receiving request of data, and transmission agreement reception is replied, the page number according to the layout page after the conversion after computing machine is received and replied begins to transmit data in proper order, sends the layout page document after the conversion to electronic reader page by page.
After electronic reader is received 1 page of page data, promptly begin this page is shown, receive the 2nd page of page data afterwards, show the 2nd page of page again, ... transmit successively and show each the page or leaf, last page in explicit user specified page scope, thus realize the effect of a synchronous transmission and demonstration.
Under the situation of wireless network transmissions, drive file according to procotol, the network address and port to electronic reader detect, and send data transmission requests to this port then, receive the transmission of carrying out the layout page document after the replying of port of electronic reader.
In the present embodiment, can carry out wireless transmission to the layout page document synchronously by the mode of WIFI, in order to guarantee transfer efficiency, computing machine is packed to the layout page document, each page in the layout page document is formed literature kit after compressing, also comprise an index file in the literature kit, relevant informations such as the creation-time of each page of record, check code can be called each page in the layout page document by the identification information that calls in the index file in the index file.Near the computer search WIFI equipment, find and have WIFI (Wireless Fidelity, Wireless Fidelity) makes up WIFI behind the electronic reader of module and connect, after computer Recognition goes out electronic reader, literature kit is sent to wirelessly under the assigned catalogue of electronic reader.Electronic reader is searched according to the index file in the literature kit, calls each page corresponding identification information in the index file, thus each page in the corresponding layout page document of explicit identification information.
Adopt the method for synchronization that the layout page document-synchronization is sent to electronic reader, electronic reader is shown synchronously to document.In the present embodiment, the screen of electronic reader is the bistable state screen, and resolution is 300dpi, then the show state of the document on above-mentioned electronic reader is similar to the paper show state that real printer program isochronous printing goes out, the user is readily appreciated that and operates, especially under working environment, can satisfy the reading requirement of user's different-format information easily, also provide a kind of convenient mode for no paper office.
2. asynchronous system
Consider and in embodiments of the present invention, can also adopt asynchronous communication mode, by computing machine the document of different-format is converted to the layout page document in advance at the different customer group of electronic reader, and with the layout page document storing in computing machine this locality.When opening the document of certain form in the computing machine, call the printing interface that the document application program provides, read the character in the document, adopt the mode of screen scraping that the document is converted to the layout page document, and each page of layout page document is write under the catalogue of the same name of document.In the present embodiment, the layout page document can be the file that comprises a plurality of picture files (such as the JPG formatted file), and the definition of name of file is the name of document; Each picture file storage is a page of layout page document in the file, and each picture file can be named according to the page number; The above-mentioned layout page document that will be kept at computing machine this locality by wireless network or SD modes such as (Secure Digital Memory Card, safe digital cards) is sent to electronic reader.Wherein, above-mentioned wireless network can be the Small Area Wireless Communication Networks that adopts technology such as Wi-Fi (Wireless Fidelity, wireless compatibility authentication) or bluetooth.
Adopt this mode, can make this electronic reader can obtain the layout page document of changing on computers in advance and storing easily, satisfy under the various environment of user reading requirement different-format information.
No matter adopt above-mentioned which kind of mode, all can make electronic reader need not to develop corresponding software for various forms again, can realize the demonstration of electronic reader simply, easily documents in various formats.
Correspondingly, the embodiment of the invention also provides a kind of electronic reader, as shown in Figure 2, is a kind of structural representation of this electronic reader.
In this embodiment, described electronic reader comprises:
Receiving element 201, be used for the layout page document that receiving computer transmits, the layout page document that described computing machine transmits is by described computing machine coupled electronic reader to be identified as printer, and the document of different-format is converted to the layout page document of described printer support by the document printing interface;
Draw processing unit 202, be used for that the layout page document that receiving element 201 receives is carried out the page and draw;
In concrete the application, above-mentioned receiving element 201 can be by the layout page document of online mode or the transmission of offline mode receiving computer, such as, can receive the layout page document that directly transmit aforementioned calculation machine conversion back synchronously by USB interface or wireless network, perhaps receive the layout page that is kept at the aforementioned calculation machine local that described computing machine transmits by asynchronous system.
Draw processing unit 202 and can carry out operations such as convergent-divergent and/or rotation to each page in the described layout page document according to the display screen parameter of described electronic reader.
The electronic reader of the embodiment of the invention, need not to install the software of corresponding different document form, utilize computing machine that the document of different-format is converted to layout page by the document printing interface, thereby unified format display interface only need be provided, realize demonstration simply, easily documents in various formats.
Correspondingly, the embodiment of the invention also provides a kind of realization electronic reader multi-format information display system, and as shown in Figure 3, this system comprises: computing machine 301 and the electronic reader 302 that links to each other with computing machine 301, wherein:
In this embodiment, the aforementioned calculation machine can be equipment such as PC, notebook computer, server.Electronic reader 302 can link to each other with computing machine 301 by USB interface or wireless network.
As shown in Figure 4, be the flow process of the layout page document of computing machine after electronic reader transmits conversion among this embodiment.
401. the computer scanning USB interface finds to have electronic reader to connect, then the layout page document that transmits as required generates data packet head;
402. electronic reader starts transport services after being connected to the computing machine USB interface, waits for and detect data transmission;
403. computing machine sends data transfer request to electronic reader;
404. after electronic reader is received above-mentioned data transfer request, carry out normal response;
405. computing machine receive electronic reader reply after, send data packet head to electronic reader, in this packet header, carried the relevant information of the layout page document that transmits with needs, such as, information such as file size, total page number;
406. electronic reader receives and resolves above-mentioned packet header;
407. electronic reader is to the every page data of computing machine request;
408. after computing machine receives the request of electronic reader, transmit every page data;
409. electronic reader receives data and shows layout page.
Need to prove that above-mentioned steps 401 and step 402 do not have proper time order and function relation, can be to take place simultaneously, can be that step 402 is before step 401 yet.
In other embodiments, computing machine and electronic reader carry out communication by wireless mode, such as passing through the WIFI mode, computer scanning WIFI equipment, in case scan the WIFI module in the electronic reader, then the layout page document that transmits as required generates data packet head, and is connected with electronic reader, electronic reader starts transport services after being connected to the WIFI module of computing machine, waits for and also detects data transmission.
In addition, above-mentioned steps 407 and step 408 can repeat repeatedly to carry out, and when such as the layout page after the conversion multipage being arranged, then need to repeat repeatedly, transmit the data of a page at every turn.Certainly, in actual applications, the layout page document that computing machine also can be earlier transmits the needs compression of packing, data transmission after will compressing is once then given electronic reader, after electronic reader is received these data, also need it is decompressed, and then carry out the layout page demonstration according to the data after decompressing.
In addition, carry out according to the data that receive or the data after the above-mentioned decompression can also carrying out operations such as convergent-divergent and/or rotation to each page in the layout page document according to the display screen parameter of electronic reader before layout page shows at electronic reader.
The process of utilizing the embodiment of the invention to realize that electronic reader multi-format information display system makes electronic reader carry out the demonstration of multi-format document can not repeat them here with reference to the description among the inventive method embodiment of front.
The embodiment of the invention realizes electronic reader multi-format information display system, can make this electronic reader can synchronization gain and show the document, the show state of the document on above-mentioned electronic reader is similar to the paper show state that real printer program isochronous printing goes out, the user is readily appreciated that and operates, especially under working environment, can satisfy the reading requirement of user's different-format information easily, also provide a kind of convenient mode for no paper office.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the application and can realize by the mode that software adds essential general hardware platform.Based on such understanding, the part that the application's technical scheme contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the application or embodiment.
Identical similar part is mutually referring to getting final product between each embodiment in this instructions, and each embodiment stresses all is difference with other embodiment.Especially, for Apparatus and system embodiment, because it is substantially similar in appearance to method embodiment, so describe fairly simplely, relevant part gets final product referring to the part explanation of method embodiment.System embodiment described above only is schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of module to realize the purpose of present embodiment scheme according to the actual needs.Those of ordinary skills promptly can understand and implement under the situation of not paying creative work.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding device and method of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. a realization electronic reader multi-format method for information display is characterized in that, comprising:
By computing machine coupled electronic reader is identified as printer, the document of different-format is converted to the layout page document, and the layout page document after will changing sends electronic reader to;
Described electronic reader carries out the page to the described layout page document that receives to be drawn, and shows the layout page after drawing.
2. method according to claim 1 is characterized in that, describedly by computing machine the document of different-format is converted to the layout page document, and the layout page document after will changing sends electronic reader to and comprises:
Described computing machine is converted to the layout page document that described printer is supported by the document printing interface with the document of different-format, and described layout page document-synchronization is sent to described electronic reader.
3. method according to claim 2 is characterized in that, described computing machine is sent to described electronic reader with described layout page document-synchronization and comprises:
Described computing machine is sent to described electronic reader by USB interface or wireless network with described layout page document-synchronization.
4. method according to claim 1 is characterized in that, described computing machine is converted to the layout page document with the document of different-format, and the layout page document after will changing sends electronic reader to and comprises:
By the document printing interface document of different-format is converted to the layout page document by described computing machine in advance, and with described layout page document storing in described computing machine this locality;
The described layout page document that is kept at computing machine this locality is sent to described electronic reader by asynchronous system.
5. according to each described method of claim 1 to 4, it is characterized in that described electronic reader carries out page drafting to the described layout page document that receives and comprises:
Described electronic reader carries out convergent-divergent and/or rotary manipulation according to the display screen parameter of described electronic reader to each page in the described layout page document.
6. method according to claim 1 is characterized in that: the layout page document after described will the conversion sends electronic reader to and comprises:
Send the layout page document after the conversion to electronic reader page by page; And/or,
Send the packing of layout page document to electronic reader, each page in the layout page document is called by the index in the literature kit.
7. an electronic reader is characterized in that, comprising:
Receiving element, be used for the layout page document that receiving computer transmits, the layout page document that described computing machine transmits is by described computing machine coupled electronic reader to be identified as printer, and the document of different-format is converted to the layout page document of printer support by the document printing interface;
Draw processing unit, be used for that the layout page document that described receiving element receives is carried out the page and draw;
Display unit is used to show the layout page after described drafting processing unit is drawn.
8. electronic reader according to claim 7 is characterized in that,
Described receiving element specifically is used for receiving the layout page document that directly transmit described computing machine conversion back synchronously by USB interface or wireless network, perhaps receives the layout page that is kept at described computing machine this locality that described computing machine transmits by asynchronous system.
9. electronic reader according to claim 8 is characterized in that,
Described drafting processing unit specifically is used for according to the display screen parameter of described electronic reader each page of described layout page document being carried out convergent-divergent and/or rotary manipulation.
10. a realization electronic reader multi-format information display system is characterized in that, comprising: computing machine and the electronic reader that links to each other with described computing machine;
Described computing machine is used for described electronic reader is identified as printer, and the document of different-format is converted to the layout page document that described printer is supported, and described layout page document-synchronization is sent to described electronic reader;
Described electronic reader is used to receive the described layout page document that described computing machine transmits, and described layout page document is carried out the page draw, and the layout page after the demonstration drafting.
11. system according to claim 10 is characterized in that,
Described electronic reader is used for linking to each other with described computing machine by USB interface.
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